Rechargeable LED headband magnifier visor, lenses 1.5X to 14X + light

Details Five pairs of stereo lenses, can be used singly or two at a time, giving 14 possible magnifications from 1.5X to 6X. LED lights adjustable in brightness and position. Built-in rechargeable battery (USB). Magnification & working distances: see chart on next tab. Light: 3 X LED. Two brightness levels, adjustable in two directions. Power: rechargeable from USB (cable included). Lenses: optical grade acrylic Presentation: lenses housed in a plastic box, everything nicely presented in a large cardboard box. Origin: imported from China by Quicktest Learn all about magnification and how to choose a magnifier, click here. Magnifications There's a box of five lenses, each of a different magnification and working distance. You can clip them onto the visor singly or in pairs (add the two magnifications); in addition you can swing down the extra-high-power magnifier. Altogether, this gives you a choice of 30 different magnifications / working distances, like this: Magnification / Combined Magnifications Focal Length / Combined Focal Lengths Single pair of lenses 1x 500mm 1.5x 330mm 2x 250mm 2.5x 200mm 3.5x 142mm Combining two pairs of lenses 1x + 1.5x 2.5x 200mm 1x + 2x 3x 165mm 1x + 2.5x 3.5x 142mm 1x + 3.5x 4.5x 110mm 1.5x + 2x 3.5x 142mm 1.5x + 2.5x 4x 125mm 1.5x + 3.5x 5x 100mm 2x + 2.5x 4.5x 110mm 2x + 3.5x 5.5x 90mm 2.5x + 3.5x 6x 83mm NOTES: The 1X lens gives no magnification on its own (it does magnify slightly, on objects 500mm away, but your arms are not that long) 6X magnification is, about the strongest (closest working distance) you can get if you want to maintain stereo vision. Applications Long working distance (lower magnifications) with the main lenses for Crafts: model-painting, hand-stitching, beading, general jewellery-making, fly-tying, crochet, leather stamping. Professional: electrical, art and antiques restorations on larger objects, lathe work with larger items, changing most watch batteries / straps. Higher magnifications (shorter working distances) with the main lenses for Crafts: antiques and DIY repairs, jewellery and general watch work (batteries and straps), hobby and crafts, electrical work. Professional: watch repairing (including changing very tiny batteries), small jewellery repairs/soldering, PCB inspection/micro-soldering, mould-making, lathe work with smaller items, painting miniatures, paintings and fabrics restoration. Highest magnifications with the auxiliary lens Instead of checking your work periodically with a jewellers loupe, it's handy to swing the auxiliary lens down for very close inspection, then flip it back out the way and continue working. More info. Everything you need to know about magnifiers and magnification. All about (and reviews of) loupes (small high-power folding jewellers' magnifiers). All about (and reviews of) binocular (head-worn) magnifiers- especially the surgeons-type. See loupes with UV lights. With most magnifiers* magnification and working distance are related. Download our Excel sheet, enter a magnification to see the resulting working distance, enter a working distance to see the resulting magnification.